Sewage apparatus



Patented May 5, 1896.

. GLOVER A SBWAGBZAPPARATUS (No Modelf) UNITED STATES PATENT OFFICE.

AMASA S. GLOVVER, OF BROCKTON, MASSACHUSETTS.

SEWAG E APPARATUS.

SPECIFICATION forming part of Letters Patent No. 559,522, dated May 5,1896. Application filed September 23,1895. Serial No. 563,340. (Nomodel.)

4,To all whom it may concern:

Be it known that I, AMASA S. GLOVER, of Brockton, in the county ofPlymouth and State of Massachusetts, have invented certain new anduseful Improvements in Sewage Apparatus, of which the following is aspecification.

This invention has for its object to permit the ltration of sewage on alarge scale without making the same offensive; and it con,- sists in anapparatus comprising a series of primary filter-beds and means forcharging the same with sewage, a structure inclosing `.said primary bedsand having provision for the rem oval of the gases emanating therefrom,the said primary beds being constructed to separate the solid from theliquid matter and to discharge the effluent wh olly through ilter` ingmaterial, and a series of secondary filterbeds located outside the saidstructure and arranged to receive said efiuent by gravitation andadapted to complete the puriiication of the same, the efliuent beingclarified and suiciently purified and deprived of offensive matter bythe primary filter-beds to permit its treatment by the secondary beds inthe open air without offense. Y

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a verticalsection of one form of sewage ap-v paratusembodying my invention. Fig. 2 represents aA section on line 2 2 of Fig.l and a plan of the parts below said line. Fig. 3 represents a verticalsection of another form of apparatus.

The same letters of reference indicate the same parts in all'thefigures.

In the drawings, a a a represent a series of primary lter-beds, whichare inclosed in a structure having provision, such as a chimney Z7', forthe removal of gases emanating from the filter-beds a.

The sewage may be rst deposited in a settling-tank, which may be withinthe structure b or elsewhere, and after sedimentation or chemicalprecipitation in said tank the liquid and the sludge may be drawn offonto the primary filter-beds.

I have not shown the settling-tankA in the drawings; but it may besupposedto be below the iioor of the structure b and connected with pipec,through which the sewage maybe transferred to the primary lter-beds.

d d d represent a series of secondary lterbeds located at the outer endsof the primary beds and at a lower level, so that the effluent from theprimary beds will iiow by gravitation upon the secondary beds.

The primary beds are constructed to arrest the solid matter and permitthe escape of the liquid matter wholly through ltering material onto thesecondary beds, so that the effluent will contain comparatively littleoffensive matter. The primary beds may be of any suitable constructionto accomplish this end. For example, they may have water-tight bottomsof concrete and a series of porous pipes c, disposed upon the saidbottoms and converging to an outlet-pipe f, as shown in Figs. l and 2,the walls of said pipes e constituting the ltering material. The pipeschave no direct communication with the spaces inclosed by the walls ofthe primary beds andthe effluent enters said pipes only through theporous wall 0f the pipes, which may be of unglazed earthenware.

In Fig. 3 I show primary filter-beds a', composed of filtering material,such as sand and gravel or any of the materials used for such purposes,resting on a liquid-tight concrete bottom a2. `An outlet-pipe f2communicates withY the filter-bed and receives the effiuent therefromand delivers it to the corresponding secondary bed.

The secondary beds are located outside of the structure b and may be ofany desired size and construction. They are here shown as provided withsluices or passages g, which receive the effluent from the outlet-pipesf and have lateral outlets g', through which the effluent passes innumerous small streams to filtering-surfaces.

It will be seen that the sewage matter is separated in the primary bedsinto two parts, the oifensive matter being retained in the gas-removingstructure, where it maybe composted with ashes, loam, or sand andremoved without Odense, While the efliuent is clarified and partiallypurified by being deprived of the greater part of the offensive matter,so that it may be rapidly disposed of in the open air by the secondarybeds without being a IOO source of offense. The secondary bed should beof much larger area than the primarybeds, so that they can dispose ofall the effluent that can possibly flow from the primary beds. 5 Thefact that the secondary beds are much larger than the primary beds isindicated in the drawings, in which the outer ends of the secondary bedsare shown as broken away, this being due to the limitations imposed byIo the size of the drawing-sheet.

I prefer to provide seven or more of the primary beds and an equalnumber of secondary beds, each primary bed and the accompanyingsecondary bed being of sufficient r 5 capacity to dispose of one dayssewage. The solid matter deposited in the primary beds may be removedfrom time to time in any suitable way.

It is to be understood that in practice the 2o outer ends of the sluicesg are closed or of such height that the effluent can escape therefromonly through the outlets g to the beds d cl.

The general construction of the entire ap 25 paratus is such that whilethe primary filtration takes place in a structure adapted to removeoffensive gases the secondary treatment, being in the open air7 mayextend for such length of time or over such an area of secondary beds asto completely dispose of 3o the sewage.

l claim- A sewage apparatus comprising a series of stationary primaryfilter beds, a structure over said beds with provision for the removal 35 of offensive gases therefrom, and a series of stationary secondaryfilter-beds located outside the said structure and arranged to receiveby gravitation the effluent from the primary filter-beds, the saidprimary beds be- 4o ing constructed to discharge the effluent whollythrough filtering material, whereby the offensive matter is retained inthe structure and the effluent is clarified and partially purified, andwhereby the said effluent 45 may receive subsequent treatment in theopen air by extensive secondary beds for any required length of timewithout offense.

In testimony whereof I have signed my name to this specification, in thepresence of 5o two subscribing witnesses, this 20th day of September, A.D. 1895.

AMASA S. GLOVER.

Witnesses:

ARTHUR P. HAZARD, CHAs. C. KEITH.

